M1909

M1909 may refer to:


 * Hotchkiss M1909 Benét-Mercié machine gun
 * Skoda M1909 machine gun
 * M1909 revolver - a Colt pistol
 * 152 mm howitzer M1909/30 - A Russian artillery piece
 * 122 mm howitzer M1909/37 - A Russian artillery piece
 * 14-inch gun M1909 - A US Army artillery piece